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Dr. Liwu Chen, MD
NPI1225261530PAC ID5496995359
- Medicare services, 2024
- 241
- Medicare patients, 2024
- 52
- Part D claims, 2024
- 1,652
- Publications
- 3
- Industry payments
- $2,632
- Practice address
- 140 E 80th St, New York, NY 10075
- Practice phone
- Call (212) 772-6830
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Retina Associates of New York
New York, New York
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Dr. Liwu Chen is an ophthalmologist in New York, New York
Dr. Chen practices at Retina Associates of New York in New York, New York.
Dr. Chen's NPI, 1225261530, was assigned on September 2, 2009. Dr. Chen graduated from Georgetown University School Of Medicine in 2009. Dr. Chen holds New York license 258684.
NPI and contact details
- NPI
- 1225261530NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5496995359
- NPI enumeration date
- September 2, 2009
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (212) 772-6830
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 43
- Medical school graduation
- 2009
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Liwu Chen practices at Retina Associates of New York in New York, New York
Dr. Chen's primary practice is Retina Associates of New York, at 140 E 80th St, New York, NY 10075 in New York County. The practice phone is (212) 772-6830.
- Retina Associates of New York140 E 80th St, New York, NY 10075 · New York CountyPhone(212) 772-6830
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Liwu Chen is affiliated with 2 sites of care
Dr. Chen's primary practice is Retina Associates of New York in New York, New York. Dmand AI also links Dr. Chen to 1 physician office, named with a free account.
Retina Associates of New YorkPrimary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Liwu Chen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chen practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Retina Associates of New York | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Liwu Chen is one of 1,467 ophthalmologists in New York
Ophthalmology is Dr. Chen's primary specialty in the NPI Registry, under taxonomy code 207W00000X. Dr. Chen is board certified in ophthalmology by the American Board of Ophthalmology. Dmand AI has Dr. Chen's licenses on file in 2 states: New York and Pennsylvania.
Specialties and state licenses
- Ophthalmology, New YorkPrimary
- Pennsylvania license
Clinical focus
Dmand AI lists cataract, cataract surgery with lens implant, conjunctivitis, dry eye, eyelid inflammation, glaucoma, glaucoma surgery and secondary membranaous cataract surgery among the conditions Dr. Chen treats.
Ophthalmologists near Dr. Chen
Counts of ophthalmologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Liwu Chen billed Medicare for 241 services in 2024
CMS data shows 241 Medicare services from Dr. Chen across 10 procedure codes in 2024, for 52 Medicare patients. Medicare paid $9,314 for them. Every service was in an office.
Medicare services, 2024241
Medicare patients52
Paid by Medicare$9,314
Procedure codes10
Dr. Chen's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 3122024: 22029%
- Office and hospital visits
- 2023: 402024: 2148%
Dr. Chen compared with the New York median for ophthalmologists, 2024
- Dr. Chen
- New York median
- Medicare services
- 241vs 1,25881% below
- Medicare patients
- 52vs 43688% below
- Part D claims
- 1,577vs 6472.4 times
Medians across 1,557 ophthalmologists in New York with Dmand AI profiles that report each measure.
Dr. Chen's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Liwu Chen treated 52 Medicare patients in 2024, average age 76
CMS counts 52 Medicare patients who saw Dr. Chen in 2024. The largest group is 65 to 74, with 25 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 42% are also on Medicaid. Their average risk score is 1.10, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Chen's median patient age at 72, with 57% women.
Medicare patients, 202452
Average age76
Average risk score1.10
Also on Medicaid42%
Dr. Chen's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Chen's Medicare patients by sex, 2024
- Women2956%
- Men2344%
Chronic conditions among Dr. Chen's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis44%
- Diabetes37%
- Ischemic heart disease23%
Share of Medicare patients with each condition. A patient can have several.
Dr. Chen's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 72
Patient panel by sex, all payers
- Women57%
- Men41%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Liwu Chen wrote 1,652 Medicare Part D claims in 2024
In 2024, Dr. Chen wrote 1,652 Medicare Part D claims for 367 patients. 70% of them were for generic drugs. CMS names the drug for 1,577 of them, across 12 drugs with 11 or more claims each, at $174,972 in total drug cost. In 2023, CMS named 1,938 claims across 18 drugs.
Part D claims, 20241,652
Drugs named by CMS12
Total drug cost$174,972
Part D patients367
Dr. Chen's Part D claims by kind of drug, 2024
- Generic1,162 claims70%
- Brand-name490 claims30%
Dr. Chen's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1,9382024: 1,57719%
Drugs named by CMS: 12 in 2024, 18 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Liwu Chen takes part in Medicare
Dr. Chen accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Cataract surgery: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Liwu Chen has 3 publications on record
Dmand AI links 3 papers to Dr. Chen, published from 2015 to 2017. Dr. Chen's most frequent co-authors are Claudio Anasetti, MD, Elder Orlando Ayala, PA-C and Ernesto Ayala, MD.
Papers3
Years published2015 to 2017
Dr. Chen's most frequent co-authors
- Claudio Anasetti, MD1 shared paper
- Elder Orlando Ayala, PA-C1 shared paper
- Ernesto Ayala, MD1 shared paper
Recent publications by Dr. Chen
Antimicrob Agents Chemother
AlbertaBacterial Proteinsbeta-Lactamases
Corneal DiseasesDiagnostic Techniques, Ophthalmological
See who Dr. Chen researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Chen works with, so you can find a warm path to the right ophthalmologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Liwu Chen received $2,632 in industry payments from 2016 to 2025
CMS Open Payments shows 40 general payments to Dr. Chen from 14 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 96% of the total. Allergan Inc. paid the most, $931.
General payments to Dr. Chen by program year, 2016 to 2025
General payments to Dr. Chen by kind, 2016 to 2025
$2.6Kin total
- Food and beverage$2,53896%
- Education$552%
- Gifts$391%
Companies that paid Dr. Chen the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Liwu Chen graduated from Georgetown University School Of Medicine
Dr. Chen graduated from Georgetown University School Of Medicine in 2009. Dr. Chen is a member of AAO and CMDA.
- Medical school
- Board certified in ophthalmology
Source: Dmand AI Professional Profile Data
Dr. Liwu Chen accepts plans from 16 insurance carriers
Dr. Chen is in network with 16 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 10. Check the plan with the practice before a visit.
- Aetna
- Elevance
- Blue Cross Blue Shield of Michigan
- United Healthcare
- HCSC
- Aspirus Health Plan
- Blue Cross Blue Shield of Massachusetts
- Humana
- +8 more carriersWith a free account
Plan types Dr. Chen accepts, by number of carriers
- Medicare10
- PPO10
- HMO7
- POS5
- EPO4
- Medicaid2
Source: Dmand AI Insurance Network Data
Sources for Dr. Liwu Chen's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Liwu Chen
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Liwu Chen's NPI number?
Dr. Liwu Chen's NPI number is 1225261530. It was assigned on September 2, 2009, and it is active in the NPI Registry.
What kind of doctor is Dr. Liwu Chen?
Dr. Liwu Chen is an ophthalmologist in New York, New York. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).
Where does Dr. Liwu Chen practice?
Dr. Chen practices at 140 E 80th St, New York, NY 10075. Dr. Chen's primary practice is Retina Associates of New York in New York, New York. Dmand AI also links Dr. Chen to 1 physician office.
What is Dr. Liwu Chen's office phone number?
The practice phone on file for Dr. Chen is (212) 772-6830.
What is Dr. Liwu Chen's medical license number?
Dr. Chen holds New York license 258684, one of the licenses on file in 2 states.
Which states has Dr. Liwu Chen been licensed in?
Dmand AI has state licenses on file for Dr. Chen in New York (2010 to 2027) and Pennsylvania (2013 to 2014).
Does Dr. Liwu Chen accept Medicare?
Yes. CMS data shows Dr. Chen billed Medicare for 241 services in 2024, and Dr. Chen accepts Medicare assignment.
How many Medicare patients does Dr. Liwu Chen see?
CMS counts 52 Medicare patients who saw Dr. Chen in 2024, with an average age of 76.
Is Dr. Liwu Chen board certified?
Yes. Dr. Chen is board certified in ophthalmology by the American Board of Ophthalmology.
What services does Dr. Liwu Chen bill to Medicare?
In 2024, Dr. Chen's most billed Medicare services were eye exam or test (92020), eye exam or test (92202) and eye exam or test (92014).
Show 7 more questionsShow fewer questions
Where did Dr. Liwu Chen go to medical school?
Dr. Chen graduated from Georgetown University School Of Medicine in 2009.
What drugs does Dr. Liwu Chen prescribe most?
In 2024 Medicare Part D data, Dr. Chen's most prescribed drugs by claims were Latanoprost, Azelastine HCl and Prednisolone Acetate.
Has Dr. Liwu Chen received payments from drug or device companies?
CMS Open Payments shows $2,632 in general payments to Dr. Chen from 14 companies from 2016 to 2025. The largest total came from Allergan Inc.
How long has Dr. Liwu Chen been practicing?
Dr. Chen graduated from medical school in 2009, 17 years ago.
Does Dr. Liwu Chen do research?
Dmand AI links 3 publications to Dr. Chen, published from 2015 to 2017.
Who does Dr. Liwu Chen publish with?
Dr. Chen's most frequent co-authors are Claudio Anasetti, MD (1 shared paper), Elder Orlando Ayala, PA-C (1 shared paper) and Ernesto Ayala, MD (1 shared paper).
What insurance does Dr. Liwu Chen accept?
Dr. Chen is in network with 16 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 10. Check the plan with the practice before a visit.
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